Perpetual calendar.



1. TUHPHN. PERPETUAL CALENDAR.

APPLICATION FILED MAY 5. I917.

Patented Nov. 5,1918.

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. To all whom itmay concern:

Jenn warm, or SAN nrneo, catironma.

, practical service as an everyday or current mands as a perpetual calendar.

compact and efficient an advertisement.

calendar and alsofor use when occasion dc Another object is to produce a calendar of the character outlined, which can be embodied in practical form sufficiently small foruse on a lead pencil or fountain pen. A further ob ject is to produce a very simple, durable, perpetual calendar at a cost sufficiently to be given away as which can be produced low to make it feasible More specifically my object is to produce a perpetual calendar composed of three ad- 1 particular month with the the third having the days of the month,

features of construction and vention, the same being i on the line 11-411 of jnstable members, one containing years data and the days of the week, another containing months data and an opening for allning a desired year, and

openings to register with the days of the week, and a slot to expose themonths data, the parts being so constructed and the data so arranged that one can readily ascertain upon what day of the week a particular event did or willhappen, within the scope of the calendar.

With these general objects in view, the invention consists in certain novel and peculiar combination of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawing. in which:

a Figure 1.. represents a side elevation of a perpetual-type calendar embodying my inshown as mounted upon a lead pencil of exaggerated diameter.

Fig. 2, is a central vertical section taken Fig. 1. a Fig. 3, is a horizontal section on the line Ill-J11 of Fig.

Fig. 4, isa horizontal section on the line IV-lV of Fig. l.

Fig. 5, is a view of a blank which when rolled to cylindrical form constitutes the Specification of Letters Patent. Application filed May 5, 1917. Serial n6. meme.

county of San Diegoand State J certain new and useful Improvements in Perpetual Calenscribed, as it is obvious dar is adapted represent red back grounds.

. rnnrnruat catnnnan.

Patented Nome, leis.

months or intermediate cylinder of the calendar. i

Fig. 6, is a similar view of a blanlrwhich when the inner or cylinder.

years j and days of the week Before proceeding with a detailed description of the invention, it is to be understood that by the terms cylindrical, rotate, and the like, applicant has no intention of restricting the scope of his invention to the embodiment thereof herein shown and dethat within the princ1ple ofconstruction involved, a perpetual calendar can be made in which the parts are flat and have reciprocatory as distinguished from rotatable movement.

In carrying out my invention, ll produce from a blank of sheet metal, celluloid, paper or other suitable material, a cylinder of L orm and size best adapted forfitting snugly on a lead pencil, pen holder or equivalent support A. The sheet, B, is divided by vertical lines into seven columns C, on. which are printed or otherwise appliedtheyears of any particular century in which the calen for use. In the drawing therange of years shown-1s from 1914: to 1925 inclusive, only the last two numbers of the respective years being used, as facilitating legibility. As the range of years greatly exceeds the number of vertical columns, 1t w1ll beuoted that the numbers indicative of par ticular years are arranged in a plurality of horizontal rows, two horizontal rows only being shown. In the first column of the upper row, the numbers 14 to 19 inclusive appear, said numbers when theblank is in cylindrical form, appearing in. the proper numerical progression, except that 16, for example, representative of a leap year, is in the second column beyond the column identified by the number 15, and said leap year column is distinctively colored,the back ground in this case representing red.

Logically the years represented in the second row, run from 20 to 24 inclusive, and in this span of years two leap years occur. This leaves two vertical columns of such row blank, one before the leap year 20, and the other before the leap year 24, which years like the year 16 are shaded to In order to the fullest is shown in gave the cylindrical calendar capacity or range, the year 1925 rolled to cylindrical form, constitutes thesecond row, as such year is the next in sequence to 'theleap year 1924:, and as the first day of the year 1925 occurs on the same day of the week as the-first .day of the year 1914, the 25 is applied in the same vertical column as the year 14 but belowithe same. As the next year 1926 in sequence will not starton the sameday as the year 1918, the blank space in the second row underlying 18 cannot be utilized, so that the next range of years beginning with 26 should bear in a third horizontal row, not shown. In this connection it will be noticed that the blankB also contains in a horizontal row .flthenames' of thedays of the week D, and by reference to "Fig; 6, it will be seenthat when the blank is rolled to cylindrical form, the1daysof the week are vertically or longitudinally alined with the years which respectively begin on such days, except that leap years are 'alined one day of the week head of the day on which they begin, the extra leapyear day,not affecting January and February of the year in which it occurs butafiecting the following months in the "same way as if the year were a common year beginning on one day. of the week later than leap year really begins. By .this means only the two months January and February have to be especially provided for, as hereinafter alswould be the case if the leap year number appears in the space upon which the year really begins. It will be noted however thatas the lower portion of the blank B is made of greater thickness than the upper portion so as to form an upwardly-dis posed annularshoulder E, the circumferentiallength of the lower portion is greater than that of the upper portion and conse- .quently some of the colmuns D do not appear in direct alinement with the respective H columns containing the years, as will-be noted by reference to Fig. 6. In the completed device however, the columns are vertically alined, and the operator, aware of this, knows that the name .of any day in row D is. the first day of any year in an alined column C.

The blank F, shown in Fig. 5, is rolled to form the intermediate or months cylinder, and such cylinder fits snugly on the reduced or upper portion of the'cylinder produced from blank B, and upon the shoulder E thereof, and said cylinder F, as will be seen by referenceto. the blank thereof, is divided by vertica-l lines into seven columns of equalwidth, and said columns are .divided by horiz'ontal lines into three horizontal'rows, the top row containing the months Jan, "and Feb, the second or middle row the l'nonthsfOct, May, Aug, Mch., Dec. and July, the vertical column betx neen the;inontlis of M011. and Dec. being'blank, The bottom-row contains all of the thirty day months, namely, Apr., Jun, Sep, and Nov., the Apr. column being vertically under the July v Qlumn of the middle row, the Jun. column the periodic occurrence of leap years, are ap plied directly on vertical lines between cer* tain columns, the abbrev1at on.Jan. oc-

curring on the yerticallinebetween the columns in which occur the month of Oct. andthe months of July and Apia, and the-abbreviationFeb. occurring on the line between the columns inwhich occur the month of Aug. and the months of Mar.

and Now, the side margins of the blank F of course coinciding when the blank is rolled to cylindrical form and therefore forming but a singleline. To avoid confusion or mistake in the operation of the calendar, the columns to the right of-Jan. and Feb. are provided at If with lining representative of black, which is the color in which the common years as distinguished from leap years, are printed, though it is of course obvious that any other color might be employed. Likewise the columns to the left of Jan. and Feb, at I, are lined in a distinctive color, the color beingshown as red tocorrespond with the red back ground on which theleap years appear. If desiredthe right hand halfofthe abbreviations Jan. and Feb. may be printed black and the'left hand half of said abbre- --viations be printed in red, so that when either of said months is disclosed through a slot hereinafter referred to, the two colors in which the displayed abbreviation appears,

will at once call to the mind of .the operator the fact that if it is a common year there must be relative movement between the cylinder F and the slot referred to whereby the adjacent black background shall be brought into register with said slot. 011 the other hand if it is a leap year, the relative adjustment mentioned will be reversed so as to bring the adjacent red back ground in registration with said slot.

The cylinder F is formed near its upper end with an outwardly projecting bead J, and above said bead with a slot K in vertical alinement with the column occupied by the month of Oct, and to hold the intermediate or months cylinder down upon shoulder E, the upper end of the reduced portion of cvlinder B, is provided with an external collar L.

As it is desirable to guard against acci- I dental rotation between cylinders B and F, theforrneris provided with seyenfcavities or recesses in "its outer face, the tame occurringf preferably between the seven years columns, and-[c lind r F ispro'iided with an iifiwardly projecting protuberance N adapted to snap into any of the cavities orrecesses M sothat a poeitive application oi" force n ill be necessary to effect relative turning movement between said eylindersB and F, antlin this connection it will he noted that the externaldiameter of the enlarged portion of cylinderB and cylinder F isequal so that their outer faces are flush.

l1ittingrotatably onthe enlarged portion of cylinder B andoncylinder F, and hear innatits upperend against the head J and at its lower end against a retaining collar (3 secured on the lower end of the cylinder B,

is the-outerordays of the montlrcylinder P, and said cylinder below the horizontal 1')lz.ine-of the row 1) of the days ottheweelt of cylinder divided into seven vertical eol111n11sQ,only three of Wl 1ichclearlyap pear, andxiaid ctiiluhins ere (lli'hltid into five horizontal rows; lnone of the said Vertical coliunns, and progressively in the horizontal rows from the top to the bottom appearethe daysot the inonth, as tollon s; 1, 8, 15, 22, and 29min L :oond column runs in the sanie manner 2,9, 16, 23, and the third colunin runs 3, 10; -17, 24,and 31; the toi'irth runs the sixth, 6, l3; QO'Q-(i-ndHT; and the seventh, 7, 14,21, and 28,"th.e colu1nns between the second and set enthfnot beingshown. In line with and at theup gieiend otsaid days otthe eel; eohimnethe cylinder l? is ro: viiledwith seven equidistant openings It, thrOugltwhieh maybe observed the naincs of the days of the \VeekaI earing on the cylinder BZ Verticallyahoi ethe opening it in line with the days ottltie month col.- uinn n'l'iich begins With the first day ofthe ni oi'ith, a vertical slot'ivliicli in; length corresponds to the length oit the months colnnins on cylinder F. Forconvenienceand alsoto avoid unnecessarily \i eakening the cylinder P, the slot mentioned is shown in three sections S.one section in the horizon tal. plane iiteach ot'the'roWs on the months cylinder. l

"rue 29th and 30th (lays ot the month are (li ,tinrgiiyely colored to correspond .respee tiveli" Witl "the coli'iring of the leap years andtlie thirty d ynio-nths. For convenience thebackgrounds for said days are liiiedto resfent 'the colors inentioi'u-rd. r the calendar is, hhoiyn and described there is fixed relation between the column Of cylinder F bearing Oi'rtland the openmg K. "Bt different month might have been arranged in the relatlon set forth 1n hen oi.- the month of @cto'henand the selection of i'ionth in such relation nee-1y the spirit and scope of my inof the designat ons of months which are simultaneously displayed through the opening); S, the one left nntioyeredheing the one sought. A. similar adjustable sleeve U is mounted on the cylinder F above the bead J thereof, and is adaptedto be adjusted to 1111 cover slot K in the horizontal'planeotthe row of years designationscontaining the particular year sought.

Assumingthat itit desired to ascertain on What day of the week the first day of hlaroh, 1916, occurred, theoperaltoi" grasps theupper end 01 cylinder F and turnsthe pencil including the cylinder B until the leap an-lever the years designations on cylinder B, is displayedthrough the slot Ki The operator-While still holding the cylinder F. then turnstheouter cyliiider l until the designation for the month. of March appears through the intermediate section or aortioiro't slot S of the cylinder, it 'helng notedthat the month otNoven her is incidentally displayed through the lonf'ersco tion of? said slot S, andthat the lining ll, also appears through the uppermost section of said sloti If the sleeves l are einployed, it Will headyantageoustd adjust them so as to respecti i ely cover the month of hllov. and, thedesigznatioll of the year 192:2 'occurring in the sanie eolulnn with; but below thehdesignation of the year 1916.

Withtheparte arranged as explained it will he-amnirent tliat as the designation Vile. ap iears through the opening in vertical ali enient with the slot S and the column of nun'ihers headed bythe number 1,,that the firetday of Marchglfilfi. oeclirrel On Wednesday.

.Frdmthe above description it will be apparent that l have produced a calendan of the perpetual type, which embodies:thctea turcs of: advantage enumerated at desirahlc in. the statement of the ohjectot the invention, and while I have'illustrated and describ d the preferred einhodinient of the iiii'ention, it ie to he understood that I reserve the r ght to make any and all changes in form, nronortion and organization which properly nu: Within the spiritand scope of the appended claims.

I claim: a

. f ,Pfi Ptt -tl e d r, comp i L 5.8. ii

member having seven vertical columns on which successive years appear in horizontal rows, the leap years being spaced in the second columns ahead of those occupied by their respective preceding years; said member also bearing the names of the days of the week arranged in order, and each vertically in line with certain of the said years columns; a second member relatively adjustable to and overlapping the first member except where the same discloses the names of the days of the week, and provided with seven columns adapted for alinement with the columns of the first member and with an pose vertical columns opening for registration with any of the years columns of said first member, said seven columns of the second member containing the names of the months in three horizontal rows, the name of a selected month being alined with the said opening;

and a third member overlapping the uncovered portion of the first member and that portion of the second member containing the names of the months, and provided with a horizontal series of seven openings through which to expose the names of the days of the week, a vertical slot in alinement with one of said openings, through which to excontaining the names of the months, and provided below the said seven openings with the days of the month in seven columns, the days appearing in numerical order with the corresponding days of the rows in vertical alinement, and with the first day of the month in vertical alinement with the said vertical slot.

2. perpetual calendar, comprising a member having seven vertical columns on which successive years appear in horizontal rows, the leap years being spaced in the second columns ahead of those occupied by their respective preceding years; said member also bearing the names of the days of the week arranged in order, and each vertically in line with certain of the said years 'columns; a second member relatively adjustable to and overlapping the first member except where same discloses the names of the days of the week, and provided with seven columns adapted for alinement with the columns of the first member and with an opening for registration with any of the years columns of said first member, said seven columns of the second member containing the names of the months in three horizontal rows, the name of a selected month being alined with the said opening; one rowof said second member containing only the designations of two months, Jan. and Feb, the abbreviation Jan. appearing between the columns containing the designations Oct. and July and the abbreviation Feb. occurring between the columns containing the abbreviations Aug and Mar.; and a third member overlapping the uncovered portion of the first member and that portion of the second member containing the names of the months, and provided with a horizontal series of seven openings through which to expose the names of the days of the week, a vertical slot in alinement with one of said openings, through which to expose vertical columns containing the names of the months, and provided below the said seven openings with the days of the month in seven columns, the days appearing in numerical order with the correspondin days of the rows in vertical alinement, an with the first day of the month in vertical alinement with the said vertical slot.

3. A perpetual calendar, comprising a member having seven vertical columns on which successive years appear in horizontal rows, the leap years being spaced in the second columns ahead of those occupied by their respective preceding years; said member also bearing the names of the days of the week arranged in order, and each vertically in line with certain of the said years columns; a second member relatively adjustable to and overlapping the first member except where same discloses the names of the days of the week, and provided with seven columns adapted for alinement with the columns of the first member and with an opening for registration with any of the years columns of said first member, said seven columns of the second member containing the names of the months in three horizontal rows, the name of a selected month being alined with the said opening; one row of said second member containing only the designations of two months, Jan. and F eb., the abbreviation J an. appearing between the columns con taining the designations Oct. and July and the abbreviation Feb. occurring between. the columns containing the abbreviations Aug. and Man, the columns between which said abbreviations J an. and Feb. appear containing distinctive coloring to indicate common and leap years respectively, one of said rows also containing only the names of the months composed of thirty days, and distinctively colored, and a third member overlapping the uncovered portion of the first member and that portion of the second member containing the names of the months, and provided with a horizontal series of seven openings through which to expose the names of the days of the week, a vertical slot in alinement with one of said openings, through which to expose vertical columns containing the names of the months, and provided below the said seven openings with the days of the month in seven columns, the days appearing in numerical order with the corresponding days of the rows in vertical alinement, and with the first day of the month in vertical alinement with the said vertical slot, the twenty-ninth day of the aeaoaa days of the month being distinctly colored to correspond with the color indicative of leap years and the thirtieth day of the days of the month being colored to correspond with the coloring of the thirty day months.

4. A calendar comprising a cylindrical member having an upwardly facing annular shoulder and provided with designations of the days of the week in a horizontal row and with designations of the years in other horizontal rows, and with a series of seven equi-spaced recesses; a second cylinder fitting rotatably on the first cylinder and rest ing on the shoulder thereof and provided with a slot for exposing one years designation at a time, of each horizontal row thereof, and provided with three rows of designations of months, one of said designations of months being in line with said slot, and provided also with a protuberance for engaging either of said recesses of the first cylinder to prevent accidental relative rotation of said cylinders, said second cylinder also having an external bead below said slot, a collar secured on the first cylinder and abutting the upper end of said second cylinder, a third cylinder fitting rotatably on the first and second cylinders and at its upper end abutting said bead and provided with designations of the days of the month "arranged in seven vertical columns, and

"with a vertical slot for disclosing the designations of the months, and also provided between said slot and said designations of the days of the month with seven openings for exposing simultaneously the designations of the days of theweek, and a collar secured on the first-named cylinder and abutting the lower end of the third cylinder.

5. A calendar comprising a cylindrical member having an upwardly facing annular shoulder and provided with designations of the days of the week in a horizontal row and with designations oi the years in other horizontal rows, and with a series of seven equi-spaced recesses; a second cylinder fitting rotatably on the first cylinder and resting on the shoulder thereof and provided with a slot for exposing one years designation at a time, of each horizontal row thereof, and provided with three rows of designations of months, one of said designations of months being in line with said slot, and provided also with a protuberance for engaging either oi said recesses of the first cylinder to prevent accidental relative rotation of said cylinders, said second cylinder also having an external bead below said slot, a collar secured on the first cylinder and abutting. the upper end of said second cylinder, a third cylinder fitting rotatably on the first and second cylinders and at its upper end abutting said head and provided with designat-ions of the days of the month arranged in seven vertical columns, and with a vertical slot for disclosing the designations of the months, and also provided between said slot and said designations of the days of the month with seven openings for exposingsimultaneously the designations of the days of the week, a collar secured on the first-named cylinder and abutting the lower end of the third cylinder, an adjustable collar on the third cylinder for covering either of the rows of designations of the months on the second cylinder, and a collar fitting on the second cylinder and adjustable to cover the designations of the years on the first cylinder displayed through the said slot of the second cylinder, except the particular year sought.

In testimony whereof, l afiix my signature, in the presence of two witnesses.

JERE TURPJEN. Witnesses:

i D. Brrrron,' P. A. WI-IITACR topics ot this patent may be obtained for five cents each, ty addressing the Uommissioncr or tatcnta, Washington, n. ill, 

